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Assessment of potential zoonotic transmission of Giardia duodenalis from dogs and cats

One Health. 2023 Nov 10;17:100651. doi: 10.1016/j.onehlt.2023.100651. eCollection 2023 Dec.

ABSTRACT

Giardia duodenalis is one of the major causes of diarrhea among humans, especially in young children. Statistical analysis revealed that the pooled prevalence of G. duodenalis in humans, dogs, and cats was 9.72% (10,921/112383), 15.60% (7510/48140), and 14.53% (1125/7740), respectively. Unquestionably, the canine-specific assemblages C and D and the feline-specific assemblage F were the dominant genotypes in dogs and cats, respectively. Additionally, the prevalence of zoonotic G. duodenalis assemblages (A and B) in dogs and cats was 23.07% (875/3792) and 41.42% (169/408), respectively, implying that the potential transmission of G. duodenalis from dogs and cats to human infection cannot be ignored. The highest frequency of potentially zoonotic assemblages was found among working dogs (3.55%, 25/705) and the 1-5 age group (22.92%, 11/48). In summary, dogs and cats have a significant role in the zoonotic transmission of G. duodenalis due to their close contact with humans and the higher frequency presence of zoonotic assemblages. Further studies are necessary to explore the presence of G. duodenalis among humans and animals and in environmental samples. Researchers should adopt a one-health approach to gain a deeper understanding of G. duodenalis in dogs and cats and potential transmission routes to humans.

PMID:38116451 | PMC:PMC10728314 | DOI:10.1016/j.onehlt.2023.100651

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